IS 10124-10: Fabricated PVC-U Fittings for Potable Water Supplies - Specification, Part 10: Specific Requirements for 45o Bends

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IS 10124-10 (2009) : Fabricated PVC-U Fittings for Potable
Water Supplies - Specification, Part 10: Specific
Requirements for 45o Bends [CED 50: Plastic Piping System]

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IS 10124 (Part 10): 2009
Wn 10 45° Ifif ^ f^fvi'^ 3T^^

Indian Standard

FABRICATED PVC-U FITTINGS FOR POTABLE WATER
SUPPLIES — SPECIFICATION

PART 10 SPECIFIC REQUIREMENTS FOR 45° BENDS

( Second Revision )

ICS 23.040.45; 91. 140.60

© BIS 2009

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

May 201 1 Price Group 2

Plastics Piping Systems Sectional Committee, CED 50

FOREWORD

This Indian Standard (Part 10) (Second Revision) was adopted by the Bureau of Indian Standards, after the
draft finalized by the Plastics Piping Systems Sectional Committee had been approved by the Civil Engineering
Division Council.

This standard was first published in 1982 and revised in 1988. In this revision, following modifications have
been made:

a) Sizes and classes of fittings have been aligned with IS 4985 : 2000 'Unplasticized PVC pipes for
potable water supplies — Specification'.

b) Requirements for bends for elastomeric sealing ring joints have also been included.

The requirements of fabricated PVC-U fittings are covered in thirteen parts. The other parts in the series are:

Part 1 General requirements

Part 2 Specific requirements for sockets

Part 3 Specific requirements for straight reducers

Part 4 Specific requirements for caps

Part 5 Specific requirements for equal tees

Part 6 Specific requirements for flanged tail pieces with metallic flanges

Part 7 Specific requirements for threaded adaptors

Part 8 Specific requirements for 90 bends

Part 9 Specific requirements for 60 bends

Part 1 1 Specific requirements for 30 bends

Part 12 Specific requirements for 22 Vi bends

Part 13 Specific requirements for 1 1 % bends

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or calculated, expressing the results of a test or analysis, shall be rounded off in accordance with
IS 2 : 1960 'Rules for rounding off numerical values {revised)'. The number of significant places retained in
the rounded off value should be the same as that of the specified value in this standard.

IS 10124 (Part 10) : 2009

Indian Standard

FABRICATED PVC-U FITTINGS FOR POTABLE WATER
SUPPLIES — SPECIFICATION

PART 10 SPECIFIC REQUIREMENTS FOR 45° BENDS

( Second Revision )

1 SCOPE

This standard (Part 10) lays down the requirements
for manufacture, dimensions and marking for
fabricated PVC-U 45 bends for potable water
supplies.

2 REFERENCES

The standards listed below contain provisions,
which through reference in this text, constitute
provisions of this standard. At the time of
publication, the editions indicated were valid. All
standards are subject to revision and parties to
agreement based on this standard are encouraged to
investigate the possibility of applying the most
recent editions of the standards indicated below:

IS No.
4985 : 2000

10124 (Parti):
2009

Title

Unplasticized P VC pipes for potable
water supplies — Specification {third
revision)

Specification for fabricated PVC-U
fittings for potable water
supplies — Specification: Part 1
General requirements

3 REQUIREMENTS

3.1 General

The general requirements for material, sizes, tests,
sampling and criteria for conformity shall conform to
IS 10124 (Parti).

3.2 Manufacture

3.2.1 Typical illustration of 45 bend is shown in
Fig. 1 . Typical illustration of 45 bend for elastomeric
sealing ring joint is shown in Fig. 2.

3.2.2 Dimensions

The dimensions of 45 bends shall comply with those
given in Table 1 read with Fig.l. The dimensions of

45 bends for elastomeric sealing ring joint shall
comply with those given in Table 2 read with Fig. 2.

3.2.3 The bends may either be plain at both ends or
socketed either at one end or at both ends as agreed
to between the manufacturer and the purchaser. In
the case of socketed bends, the socket measurement
shall comply with IS 10124 (Part 1).

4 MARKING

4.1 Each 45 bend shall be clearly and indelibly marked
with the following information:

a)
b)

c)
d)

Manufacturer's name or identification mark.
Size of the bend and the appropriate class
(working pressure) of IS 4985 to which the
pressure rating of the fitting corresponds.
Degree of bend, and

Bends shall be marked in colour as indicated
below for different classes of fittings:
Class of the Fittings Colour

Class 2 (0.4 MPa)
Class 3 (0.6 MPa)
Class 4 (0.8 MPa)
Class 5 (1.0 MPa)
Class 6 (1.25 MPa)
Plumbing

4.2 BIS Certification Marking

Blue

Green

Brown

Yellow

Black

Pink

Each 45 bend may also be marked with the Standard
Mark.

4.2.1 The use of the Standard Mark is governed by the
provisions of thQ Bureau of Indian Standards Act, 1986
and the Rules and Regulations made thereunder. The
details of conditions under which a licence for the use
of the Standard Mark may be granted to the manufacturer
or producer may be obtained from the Bureau of Indian
Standards.

IS 10124 (Part 10) : 2009

Fig. 1 45 Bend
Table 1 Dimensions of 45 Bend

{Clause 3.2.2, andF/g. 1)
All dimensions in millimetres.

SI

Nomina

Y

L

R

Minimum Wall Thickness

(0

for Working

Pressure

No.

Size

Min

(Only

for
Plain
Ends)

Min

MP

a
4)

M).4 (Class

2) 0.6 (Class 3)

0.8 (Class

1.0 (Class 5)

1.25 (Class 6)

Plumb"-

Min

ing

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

i)

20

48

20

60

1.0

1.3

2.5

ii)

25

59

25

75

—

—

1.1

1.3

1.5

2.6

iii)

32

75

32

96

—

—

1.4

1.6

1.9

3.1

iv)

40

95

40

120

—

1.3

1.6

1.9

2.5

3.3

V)

50

118

50

150

—

1.5

2.1

2.5

3.0

3.4

vi)

63

149

63

189

1.4

2.0

2.5

3.2

3.8

—

vii)

75

177

75

225

1.7

2.4

3.1

3.8

4.6

—

viii)

90

212

90

270

1.9

2.8

3.6

4.5

5.5

—

ix)

110

259

110

330

2.3

3.4

4.4

5.5

6.7

—

X)

125

295

125

375

2.7

3.9

5.1

6.3

7.6

—

xi)

140

330

140

420

2.9

4.4

5.7

7.0

8.6

—

xii)

160

377

160

480

3.4

4.9

6.5

8.0

9.8

—

xiii)

180

424

180

540

3.8

5.5

7.2

9.0

10.9

—

xiv)

200

471

200

600

4.2

6.2

8.0

10.0

12.3

—

xv)

225

530

225

675

4.7

6.9

9.0

11.2

13.8

—

xvi)

250

589

250

750

5.2

7.7

10.0

12.5

15.3

—

xvii)

280

660

280

840

5.8

8.6

11.3

13.9

17.1

—

xviii)

315

742

315

945

6.5

9.7

12.6

15.6

19.3

—

xix)

355

837

355

1 065

7.3

10.8

14.3

17.7

21.7

—

xx)

400

842

400

1 200

8.2

12.2

16.1

19.8

24.5

—

xxi)

450

1 070

450

1 350

9.3

13.7

18.0

22.4

27.5

—

xxii)

500

1 178

500

1 500

10.3

15.3

20.1

24.8

30.5

—

xxiii)

560

1 319

560

1 680

11.6

17.2

22.4

27.8

34.2

—

xxiv)

630

1 484

630

1 890

13.0

19.2

25.2

31.8

38.4

—

NOTES

1 Minimum wall thickness is calculated on the basis of 90 percent of the minimum wall thickness of the corresponding size
and pressure class of pipe rounded off to the next higher 0.1 mm.

2 7, Min is calculated from 45° x 2 6 i?

360°

3 R, Min radius of the bend, is equal to 3 times the nominal outside diameter {D).

4 For 0.25 MPa pressure class, bends should not be made from 0.25 MPa pressure class pipes. For this bends made from 0.4 MPa
pressure class should be used.

IS 10124 (Part 10) : 2009

NOTE — The drawings are only intended to define the terms used in Table 1 and Table 2 and are not intended to illustrate
specific design features.

Fig. 2 45 Bend for Elastomeric Sealing Ring Joint

Table 2 Dimensions of 45° Bend for Elastomeric Sealing Ring Joint

{Clause 1>22, andF/g. 2)
All dimensions in millimetres.

SI

Nominal

Y

L

R

Minimum Wall Thickness {t) for

Working Pres

sure

No.

Size

Min

(Plain
Ends)

Min

Min

MPa

^

^^

0.4 (Class 2)

0.6 (Class 3)

0.8 (Class 4)

1.0 (Class 5)

1.25 (Class 6)

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

i)

63

149

107

189

—

2.0

2.6

3.2

3.9

ii)

75

177

112

225

—

2.4

3.1

3.8

4.6

iii)

90

212

118

270

—

2.8

3.6

4.5

5.5

iv)

110

259

127

330

2.3

3.4

4.4

5.5

6.8

V)

125

295

133

375

2.7

3.9

5.1

6.3

7.7

vi)

140

330

139

420

2.9

4.4

5.7

7.0

8.6

vii)

160

377

146

480

3.4

4.9

6.5

8.0

9.9

viii)

180

424

156

540

3.8

5.5

7.2

9.0

11.0

ix)

200

471

164

600

4.2

6.2

8.0

10.0

12.3

X)

225

530

175

675

4.7

6.9

9.0

11.2

13.8

xi)

250

589

185

750

5.2

7.7

10.1

12.5

15.3

xii)

280

660

198

840

5.8

8.6

11.3

13.9

17.1

xiii)

315

742

215

945

6.5

9.7

12.6

15.6

19.3

xiv)

355

837

229

1 065

7.3

10.8

14.3

17.7

21.7

xv)

400

842

242

1 200

8.2

12.2

16.1

19.8

24.5

xvi)

450

1 060

259

1 350

9.3

13.7

18.0

22.4

27.5

xvii)

500

1 178

279

1 500

10.3

15.3

20.1

24.8

30.5

xviii)

560

1 319

298

1 680

11.6

17.2

22.4

27.8

34.2

xix)

630

1 484

322

1 890

13.0

19.2

25.2

31.3

38.5

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development of the activities of standardization, marking and quality certification of goods and attending to
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should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of
'BIS Catalogue' and 'Standards: Monthly Additions'.

This Indian Standard has been developed from Doc No. : CED 50 (7440).

Amendments Issued Since Publication

Amendment No. Date of Issue Text Affected

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